知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN107746520A 一种PVC注塑物料及一种能在产品表面形成高光镜面效果的PVC注塑方法 无效 - 驳回

一种PVC注塑物料及一种能在产品表面形成高光镜面效果的PVC注塑方法
摘要：
本发明公开了一种PVC注塑物料及一种能在产品表面形成高光镜面效果的PVC注塑方法，物料重量百分比组分：30～50％PVC树脂，15～25％对苯二甲酸二辛脂，18.5～38％碳酸钙，2～8％稳定剂，1.5～2％甲基丙烯酸甲酯与丙烯腈共聚物，注塑方法包括步骤：先将上述组分搅拌均匀；加热至熔融状态；合模；填充，通过注塑机进行注塑，一段的注塑压力为15～30Bar、流量为15～35mm/s、注塑时间为2～5s，二段的注塑压力为15～30Bar、流量为20～40mm/s、注塑时间为1～3s，三段的注塑压力为10～25Bar、流量为10～25mm/s、注塑时间为2～4s；保压；冷却；脱模；本发明的注塑方法能在产品表面形成高光镜面效果，满足终端客户对产品外观的要求，同时提升产品在市场上的竞争力。
摘要（英）：

The invention discloses a PVC injection molding material and a PVC injection molding method capable of forming a high-light mirror surface effect on the surface of a product. The PVC injection moldingmaterial comprises the components in percentage by weight: 30-50% of PVC resin, 15-25% of dioctyl terephthalate, 18.5-38% of calcium carbonate, 2-8% of stabilizer and 1.5-2% of methyl methacrylate and acrylonitrile copolymers. The injection molding method comprises the steps: firstly, uniformly stirring the components; heating the components to be in a molten state; closing a mold; carrying out filling, carrying out injection molding by an injection molding machine, wherein the injection molding pressure at the first stage is 15-30Bar, the flow at the first stage is 15-35mm/s, the injection molding time at the first stage is 2-5s, the injection molding pressure at the second stage is 15-30Bar, the flow at the second stage is 20-40mm/s, the injection molding time at the second stage is 1-3s, the injection molding pressure at the third stage is 10-25Bar, the flow at the third stage is 10-25mm/s, and the injection molding time at the third stage is 2-4s; maintaining the pressure; carrying out cooling; and carrying out demolding. By using the injection molding method disclosed by the invention, a high-light mirror surface effect can be formed on the surface of the product, the requirement of a terminal client to the appearance of the product can be met, and meanwhile, the competitiveness of the product on the market can be improved.

0/0